US4875141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headlight for vehicle
Assignee: Koito Manufacturing Co Ltd
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Filing: 1987-12-21
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Granted: 1989-10-17
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Expires: 2007-12-21
Abstract
Abstract A headlight for use in a vehicle and comprising a lamp body a reflective mirror mounted in the lamp body and having a front opening, a bulb mounted in the reflective mirror and acting as the light source of the headlight, a douser plate mounted on the lamp body at the location between the front opening of the mirror and the bulb and intercepting a part of the light emitted from the bulb. The douser plate is supported on the lamp body such that the douser plate can incline transversely with respect to the lamp body, and driving device is provided on the lamp body for transversely inclining the douser plate.
Inventors
- 👤 Shizuya Miyauchi
- 👤 Kiyoshi Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:47
CPC Classifications
F; F21; F21S; F21S41/00; F21S41/60; F21S41/68; F21S41/683; F21S41/686; B; B62; B62J; B62J6/00; B62J6/02; B62J6/022; B62J6/023
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
A headlight for use in a vehicle and comprising a lamp body, a reflective mirror mounted in the lamp body and having a front opening, a bulb mounted in the reflective mirror and acting as the light source of the headlight, a douser plate mounted on the lamp body at the location between the front opening of the mirror and the bulb and intercepting a part of the light emitted from the bulb, means for supporting the douser plate on the lamp body such that the douser plate can incline transversely with respect to the lamp body, and driving means provided on the lamp body for transversely inclining the douser plate.
Claim 2
Dependent Claim
111 words
A headlight for use in a vehicle and comprising a lamp body, a reflective mirror mounted in the lamp body and having a front opening, a bulb mounted in the reflective mirror and acting as the light source of the headlight, a douser plate mounted on the lamp body at the location between the front opening of the mirror and the bulb and intercepting a part of the light emitted from the bulb, means for supporting the douser plate on the lamp body such that the douser plate can incline transversely with respect to the lamp body, and driving means provided on the lamp body for transversely inclining the douser plate.
Claim 3
Dependent Claim
40 words
A headlight according to claim 1, further comprising means for detecting the inclination of the body of the vehicle, and means for actuating the driving means for transversely inclining the douser plate in response to the inclination of the vehicle.
Claim 4
Dependent Claim
52 words
A headlight according to claim 1, further comprising means for supporting the douser plate on the lamp body such that the douser plate can displace in the vertical directions with respect to the lamp body, and second driving means provided on the lamp body for displacing the douser plate in vertical directions.
Claim 5
Dependent Claim
51 words
A headlight according to claim 2, further comprising means for detecting the inclination of the body of the vehicle in longitudinal directions, and means for actuating the second driving means for displacing the douser plate in the vertical directions in response to the inclination of the vehicle in the longitudinal directions.
Claim 6
Dependent Claim
46 words
A headlight according to claim 2 wherein said means for detecting the inclination of the vehicle includes a rotor mounted on a gimbal device and driven by a motor, and means for detecting the inclination of the rotor with respect to the body of the vehicle.
Claim 7
Dependent Claim
44 words
A headlight according to claim 1, wherein the reflective mirror has the configuration generally of a paraboloid, the bulb is located generally on one of the focii of the paraboloid, and the douser plate is located near to the other focus of the paraboloid.
Claim 8
Dependent Claim
52 words
The headlight according to claim 3, further comprising means for detecting the inclination of the body of the vehicle in the longitudinal directions, and means for actuating the second driving means for displacing the douser plate in the vertical directions in response to the inclination of the vehicle in the longitudinal direction.
Claim 9
Dependent Claim
46 words
The headlight according to claim 4, wherein said means for detecting the inclination of the vehicle includes a rotor mounted on a gimbal device and driven by a motor, and means for detecting the inclination of the rotor with respect to the body of the vehicle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |